Datasheet Summary
®
X40420, X40421
4kbit EEPROM
Data Sheet March 28, 2005 FN8117.0
PRELIMINARY
Dual Voltage Monitor with Integrated CPU Supervisor and System Battery Switch
Features
- Dual voltage detection and reset assertion
- Three standard reset threshold settings (4.6V/2.9V, 4.6V/2.6V, 2.9V/1.6V)
- VTRIP2 Programmable down to 0.9V
- Adjust low voltage reset threshold voltages using special programming sequence
- Reset signal valid to VCC = 1V
- Monitor two voltages or detect power fail
- Battery Switch Backup
- VOUT: 5mA to 50mA from VCC; or 250µA from VBATT
- Fault detection register
- Selectable power-on reset timeout (0.05s, 0.2s, 0.4s, 0.8s)
- Selectable watchdog timer interval (25ms, 200ms, 1.4s,...
